| Zigzag Island | |
| Map: | Antarctic Peninsula#Antarctica |
| Pushpin Map Caption: | Location in Antarctica |
| Location: | Antarctica |
| Archipelago: | Palmer Archipelago |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Zigzag Island is a small island close off the south coast of Tower Island, Palmer Archipelago. The name applied by United Kingdom Antarctic Place-Names Committee (UK-APC) is descriptive of the island in plan; it is deeply indented, with steep cliff faces.[1]